63 results about "Trimethylolpropane trimethacrylate" patented technology

The invention discloses an anti-bending data connecting line and a preparation method thereof, and relates to the technical field of data line preparation, polyethylene is coated on the surface of a conductor to form an insulating layer, a braid layer is arranged outside the insulating layer, a shielding layer is arranged outside the braid layer, and modified resin is coated outside the shielding layer to form a protective layer, so that the anti-bending data connecting line is prepared. The modified resin is prepared from the following raw materials: PVC paste resin, modified polyurethane, allyl alcohol glycidyl ether, dioctyl phthalate, trimethylolpropane trimethacrylate, a modified filler and 4, 4 '-diaminodiphenylmethane through banburying, the modified filler takes a carbon nanotube as a hard core, polyborosiloxane is coated as a soft layer, and the soft layer is coated with polyborosiloxane. The polymethyl methacrylate is of a special core-shell structure with a hard shell, when the polymethyl methacrylate is subjected to external force, a shell layer in the modified filler can promote cracks to deflect when reaching a core-shell interface, and the deflection of the cracks increases a crack propagation path, so that energy is absorbed, and the toughness of the modified resin is improved.

The invention discloses a UL125 DEG C irradiation cross-linked PVC cable material and a preparation method and application thereof.The UL125 DEG C irradiation cross-linked PVC cable material is prepared from, by mass, 100 parts of PVC resin, 55-75 parts of plasticizer, 10-20 parts of stabilizer, 1-2.5 parts of composite antioxidant, 10-25 parts of flame retardant, 10-25 parts of filler, 0.5-3 parts of lubricant, 10-25 parts of modifier and 1-5 parts of cross-linking agent, the polymerization degree of the PVC resin is 2000-3000, and the polymerization degree of the plasticizer is 2000-3000. The modifier is a mixture of EVA resin and CPE resin in a mass ratio of (2-3): 1, the content of vinyl acetate in the EVA resin is 18-33%, and the cross-linking agent is at least one of trimethylolpropane trimethacrylate and triallyl isocyanurate. The UL125 DEG C irradiation crosslinking PVC cable material provided by the invention not only meets the UL125 DEG C standard, but also has excellent thermal extension performance, and is suitable for the requirements of long-time high temperature and short-time high temperature scenes.

The invention relates to the technical field of cable accessories, in particular to a high-strength cable accessory and a preparation method thereof. The high-strength cable accessory comprises a semiconductor layer and an insulating layer, and the semiconductor layer is prepared from, by weight, 10-15 parts of low-density polyethylene, 75-85 parts of polyolefin thermoplastic elastomer, 8-12 parts of ethylene propylene diene monomer, 25-40 parts of silane coupling agent grafted graphene nanosheets and 4-6 parts of maleic anhydride grafted modified ethylene-octylene copolymer. The composition comprises the following components in parts by weight: 1.0-2.0 parts of zinc stearate, 1.0-2.0 parts of an antioxidant, 2.0-3.5 parts of trimethylolpropane trimethacrylate and 1.5-2.2 parts of dicumyl peroxide. According to the high-strength cable accessory provided by the invention, the overall mechanical property, thermal stability and conductivity of the composite material and the mechanical strength, breakdown field strength and insulating property of the insulating layer are improved.

Hoses include inner tube, a reinforcement layer disposed outwardly from the inner tube, and a cover layer disposed outwardly from the reinforcement layer, and the cover layer and / or inner tube is based on a cured composition formed from a mixture containing a blend of chlorinated polyethylene (CPE) and cross-linkable oxidized high density polyethylene (oxidized HDPE), where the CPE and oxidized HDPE are blended in a CPE:oxidized HDPE weight ratio of from 10:1 to 1:1, and a peroxide curing system. The peroxide curing system used in some compositions according the disclosure include alpha-alpha-bis(t-butylperoxy)diisopropylbenzene and trimethylolpropane trimethacrylate.

The invention relates to the field of laminated glass intermediate films, in particular to an ionic safe laminated glass intermediate film and a preparation method thereof. The middle membrane comprises the following components: ethylene methacrylic acid copolymer metal salt, a coupling agent, an initiator, trimethylolpropane trimethacrylate, a grafting monomer, a chain extender and a molecular weight regulator; the preparation method comprises the following steps: mixing ethylene methacrylic acid copolymer metal salt, an initiator and a grafting monomer in a high-speed mixer to obtain a first mixture; mixing the first mixture, a coupling agent, trimethylolpropane trimethacrylate, a chain extender and a molecular weight regulator in a high-speed mixer to obtain a second mixture; and inputting the second mixture into a screw extruder, and extruding to obtain the ionic safe laminated glass intermediate film. The ionic safe laminated glass intermediate film is low in raw material cost, high in tensile strength and suitable for laminated glass of facilities with high safety requirements.

The present application belongs to the technical field of cable material, and particularly relates to a resin composition, a cable insulation material, a cable and a preparation method. The resin composition comprises polyethylene, a crosslinking agent and a crosslinking aid. The crosslinking agent is selected from one or more of triallyl isocyanurate, trimethylolpropane trimethacrylate and trimethylolpropane triacrylate. The crosslinking aid is selected from one or more of triphenyl phosphite, dipropylene glycol diacrylate and tetraethylene glycol diacrylate. The cable insulation material made of the resin composition has a high irradiation crosslinking rate, which can significantly improve the irradiation processing speed of the subsequent cable and improve the cable output efficiency. In addition, the cable insulation material has good aging resistance, can meet the long service life requirement, saves the cable update cost and has good economic benefits.

The present application relates to the field of interlayer film of laminated glass, and particularly relates to an ionic safety interlayer film of laminated glass and a preparation method thereof. The components of the interlayer film include ethylene methacrylic acid copolymer metal salt, coupling agent, initiator, trimethylolpropane trimethacrylate, grafting monomer, chain extender and molecular weight regulator; the preparation method includes the following steps: mixing the ethylene methacrylic acid copolymer metal salt, initiator and grafting monomer in a high-speed mixer to obtain a first mixture; mixing the first mixture, coupling agent, trimethylolpropane trimethacrylate, chain extender and molecular weight regulator in a high-speed mixer to obtain a second mixture; and inputting the second mixture into a screw extruder to extrude the ionic safety interlayer film of laminated glass. The ionic safety interlayer film of laminated glass has low raw material cost and high tensile strength, and is suitable for laminated glass of high safety demand facilities.

The application belongs to the technical field of paint coating, and particularly relates to a high-stability UV and moisture dual-curing three-protection paint and a preparation method thereof, which comprises, based on the total amount of raw materials, 25.5-77.9 wt% of 3,3,5-trimethylcyclohexyl acrylate, 20-54 wt% of polyurethane acrylate with an isocyanate group, 1-8.5 wt% of an auxiliary stable crosslinking agent, 0.1-5 wt% of a dehydrating agent, and 1-7 wt% of a photoinitiator; the weight ratio of the polyurethane acrylate to the 3,3,5-trimethylcyclohexyl acrylate and the auxiliary stable crosslinking agent is 1:(1.10-1.40):(0.05-0.30); and the auxiliary stable crosslinking agent is selected from trimethylolpropane triacrylate and / or trimethylolpropane trimethacrylate. The application has the properties of UV and moisture dual curing, and has high stability and can resist acid and alkali environments.

This invention relates to the field of battery materials technology, disclosing sulfur-containing polymer battery materials, positive electrode sheets, their preparation methods, and lithium-sulfur batteries. The preparation method of the sulfur-containing polymer battery material includes: crosslinking and curing molten sulfur with trimethylolpropane trimethacrylate at a mass ratio of 1-4:1. In the polymer S-TMPTMA obtained by this method, the O atoms in the C=O functional groups act as electron-rich active sites, effectively chemically adsorbing relatively electron-poor lithium from the lithium polysulfide intermediate during the lithium-sulfur electrochemical reaction, thereby alleviating the dissolution of lithium polysulfides in ether-based electrolytes and reducing the influence of the "shuttle effect." In a preferred embodiment, this polymer is used as a printing ink to manufacture electrodes via 3D printing, and these electrodes exhibit excellent electrochemical performance.

The present invention relates to the technical field of lenses, and particularly to a solvent-resistant resin capable of blocking yellow glare and a middle-aged and elderly lens prepared therefrom. Aiming at the problem in the prior art that the generation of yellow glare cannot be solved, the present invention provides a solvent-resistant resin capable of blocking yellow glare and a middle-aged and elderly lens prepared therefrom, which includes a matrix resin, and also includes styrene, trimethylolpropane trimethacrylate, an initiator, a light stabilizer, an antioxidant, and a yellow glare blocking dye, and the yellow glare blocking dye has an absorption peak in the wavelength range of 540-630 nm. The present invention adds a yellow glare blocking dye having an absorption peak in the wavelength range of 540-630 nm to the resin, which can effectively filter out a large amount of yellow light, thereby reducing the possibility of generating yellow glare.

This invention relates to a collagen-moisturizing soft hydrophilic contact lens, belonging to the field of contact lens technology. The collagen-moisturizing soft hydrophilic contact lens of this invention comprises the following components: hydroxyethyl methacrylate, N-vinylpyrrolidone, N,N-dimethylacrylamide, methyl acrylate, collagen, polyethylene glycol 400, polyvinylpyrrolidone K90, azobisisobutyronitrile, azodimethylvaleronitrile, benzoyl peroxide, ethylene glycol dimethacrylate, trimethylolpropane trimethacrylate, and divinylbenzene. This invention solves the problems of rapid decay of moisturizing effect, poor biocompatibility, and low long-term wearing comfort of existing contact lenses through the synergistic effect of a complex hydrophilic monomer system, collagen functional components, a gradient complex initiation system, and a multi-dimensional complex cross-linking system.

The invention discloses a particle temporary plugging agent and a preparation method thereof, wherein the particle temporary plugging agent comprises the following components according to mass percentage: acrylamide: 17-23%; comonomer: 1-2%; first crosslinking agent: 0.2-0.27%; polyvinyl alcohol: 5-10%; second crosslinking agent: 1-2%; initiator: 0.06-0.12%; initiator aid: 0.01-0.02%; modified nano-blended material: 3-6%; dispersant: 0.3-0.6%; the rest is distilled water; wherein the first crosslinking agent is one or more of ethylene glycol dimethacrylate, polyethylene glycol diacrylate, and trimethylolpropane trimethacrylate; the second crosslinking agent is one or two of β-cyclodextrin-boron complex and glycerol-boron complex; the modified nano-blended material is a soda lime silicate modified by surface activation-silane coupling modification, and the form is hollow microspheres. The invention realizes providing a low-density, good plugging performance, and excellent degradation performance of the temporary plugging agent system in the seam.

The present application relates to the technical field of hose manufacturing, in particular to a PVC hose resistant to heat and high pressure and a preparation method thereof. The PVC resin powder is added as a plastic matrix; the plasticizer DOTP is added to plasticize and soften; the calcium carbonate is added to play a role of reinforcing filling; the carbon black is added to shield ultraviolet rays and dye; the calcium-zinc composite stabilizer is added to prevent the PVC from thermal decomposition; the chlorinated polyethylene is added to provide a rubber phase for the material and increase elasticity; the processing aid ACR resin is added to reduce processing temperature, promote plasticization and improve material toughness; the dicumyl peroxide is added to oxidize and break chains as an initiator; the trimethylolpropane trimethacrylate is added to promote vulcanization and crosslinking; and the triallyl isocyanurate is added to play a crosslinking role. The modified zirconium phosphate is further added, the modified zirconium phosphate loaded with iron ions is added to PVC powder, and the heat and high pressure resistance of the PVC hose is improved.

The application relates to an iminodiacetic acid type chelating resin and a preparation method and application thereof, and the preparation method comprises the following steps: (1) in the case that the stirring speed is 200-350 r / min, two dispersants are dissolved in water, then ethylbenzene, glycidyl methacrylate, trimethylolpropane trimethacrylate, isooctane and di-t-butyl peroxide are added, the raw materials are reacted after ultrasonic mixing, centrifugal separation is carried out after the reaction is completed, the filter cake is cleaned and dried, and resin microspheres are obtained; (2) in the stirring state, the resin microspheres obtained in the step (1) are added into water, then iminodiacetic acid is added, stirring is continued, then preliminary reaction is carried out by heating, NaOH is further added, reaction is carried out by heating, after the reaction is completed, filtration, cleaning and drying are carried out, and the iminodiacetic acid type chelating resin is obtained. The chelating resin particle size can be controlled, the particle size is relatively large, the specific surface area is large, the adsorption capacity is high, and the chelating resin can be used for adsorbing lead ions in heavy salt matrix.

The invention discloses an anti-bending data connecting line and a preparation method thereof, and relates to the technical field of data line preparation. Polyethylene is coated on the surface of a conductor to form an insulating layer, a braided layer is arranged outside the insulating layer, a shielding layer is arranged outside the braided layer, and a modified resin is coated outside the shielding layer to form a protective layer to prepare the anti-bending data connecting line. The modified resin is prepared from the following raw materials: PVC paste resin, modified polyurethane, allyl alcohol glycidyl ether, dioctyl phthalate, trimethylolpropane trimethacrylate, modified filler and 4,4'-diaminodiphenylmethane banburying. The modified filler has a special core-shell structure with carbon nanotubes as a hard core, polyborosiloxane coating as a soft layer, and polymethyl methacrylate as a hard shell. When subjected to external force, the shell layer in the modified filler can cause cracks to deflect when reaching the core-shell interface, and the deflection of the crack increases the path of crack expansion, thereby absorbing energy and improving the toughness of the modified resin.

The application discloses a medical dilator PP material and a preparation method thereof, relates to the technical field of high-performance polypropylene materials, and belongs to the patent classification C08L23 / 12. The method comprises the following steps: firstly, calcining and silanizing surface modification are performed on nano-hydroxyapatite to obtain silanized nano-hydroxyapatite with surface grafted amino groups; then, polypropylene, the modified nano-hydroxyapatite and maleic anhydride grafted polypropylene are premixed, melt blended through a double-screw extruder and granulated to prepare base composite material particles; the base particles are mixed with a dibenzyl sorbitol nucleating agent and trimethylolpropane trimethacrylate, and then injection molding is performed, and annealing treatment is performed on the sample; finally, electron beam irradiation is performed on the sample under an inert atmosphere, and the medical dilator PP material is obtained after standing and stabilization. The medical dilator PP material prepared by the method has excellent mechanical strength.

The invention provides an acrylic resin assistant for a cathode electrophoretic coating and a preparation method thereof, and belongs to the technical field of coatings, microgel particles in the acrylic resin assistant for the cathode electrophoretic coating have a shell-core structure, and the microgel particles comprise a hard core component and a soft shell component; the crosslinking monomer comprises at least one of trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, trimethylolpropane trimethacrylate, ethylene glycol dimethacrylate, zinc diacrylate and zinc dimethacrylate; the functional monomer comprises at least one of diacetone acrylamide, ethyl acetoacetate methacrylate, glycidyl methacrylate and dimethylaminoethyl methacrylate. Under the electric field intensity of 10-100V / cm, the film thickness of the sharp edge part of the prepared nano-emulsion reaches 85 + / -3% of that of a plane area; after curing, the pencil hardness at the edge of the film is greater than or equal to 2H, and the salt spray resistance is greater than or equal to 1200h; and the storage stability of the emulsion is more than 12 months.

The invention provides an oil-resistant TPV material and a preparation method thereof, and belongs to the technical field of resin synthesis. The oil-resistant TPV material comprises the following components in parts by weight: 30-50 parts of PA (polyamide); 40 to 60 parts of NBR (nitrile butadiene rubber); 5-7 parts of a composite vulcanizing agent; 10-15 parts of a plasticizer; 1-2 parts of stearic acid; 10-20 parts of light calcium carbonate; 1-2 parts of an anti-aging agent; according to the invention, a mixture of trimethylolpropane trimethacrylate and 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane is used as a composite vulcanizing agent, and a mixture of dibutoxyethyl adipate and acetyl tri-n-butyl citrate is used as a plasticizer; and by controlling the mass ratio of the composite vulcanizing agent to the plasticizer, the oil resistance, compressive deformation and aging resistance of the rubber can be improved.

This invention relates to the field of power cable materials technology, and discloses an anti-scorching agent and composition, a semi-conductive shielding material, its preparation method, and its application. The anti-scorching agent comprises structural units provided by monomer A and structural units provided by monomer B; monomer A is 3-[(4-phenylaminophenyl)amino]-2-hydroxypropyl methacrylate, and monomer B is selected from trimethylolpropane trimethacrylate or pentaerythritol triacrylate; the molar ratio of monomer A to monomer B is 1:(2-4). This anti-scorching agent can achieve the anti-scorching effect of the semi-conductive shielding material and is beneficial for long-term extrusion.

The invention relates to the technical field of silicone rubber, in particular to a modified silicone rubber material and a preparation method thereof. The preparation method comprises the following steps: 1, contacting white carbon black with water vapor for primary heat treatment to obtain dechlorinated white carbon black, and then contacting the dechlorinated white carbon black with water and a modifier for secondary heat treatment to obtain modified white carbon black; 2, tabletting raw silicone rubber, the modified white carbon black, a heat-resistant additive, a vulcanizing agent and a vulcanizing aid to obtain a mixed rubber sheet, and vulcanizing the mixed rubber sheet to obtain a modified silicone rubber material; the vulcanizing agent comprises at least one of dicumyl peroxide, bis (tert-butylperoxy) isopropyl benzene and 2, 4-dichlorobenzoyl peroxide; the vulcanizing aid is prepared from at least one of N, N '-m-phenylenedimaleimide, trimethylolpropane triacrylate, trimethylolpropane trimethacrylate and diallyl phthalate. The method provided by the invention can make the silicone rubber material have good mechanical properties at normal temperature and excellent compressive deformation resistance at high temperature.

The invention relates to the technical field of mortar pumps, and discloses a fluid medium impact damage resistant mortar pump impeller and a preparation method thereof, the fluid medium impact damage resistant mortar pump impeller is prepared from the following components: a copolymer, grafted chlorinated polyethylene resin, nano silicon dioxide, polystyrene, glass fiber, stearic acid, trimethylolpropane trimethacrylate, ABS resin, tetra [beta-(3, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, the preparation method comprises the following steps: adding 2, 3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester and poly (butylene succinate); the mortar pump impeller prepared by the invention has excellent mechanical properties, particularly the impact resistance is greatly improved, and the fluid medium impact resistance of the mortar pump impeller can be remarkably improved by improving the impact resistance of the mortar pump impeller, so that the occurrence of fluid medium impact damage can be effectively reduced, and the service life of the mortar pump impeller is prolonged. Therefore, the service life of the impeller of the mortar pump is greatly prolonged.

The invention provides a battery pole piece, a lithium ion battery and a preparation method of the lithium ion battery. Specifically, a coating is arranged on one side, far away from a current collector, of an active material layer of the battery pole piece; the coating is formed by crosslinking a first monomer, a second monomer, a binder and a photoinitiator; the first monomer is prepared from at least one of diethyl allyl phosphonate, triethyl phosphate, diphenyl phosphate, dimethyl methylphosphonate or melamine cyanurate; and the second monomer is prepared from at least one of ethoxylated trimethylolpropane triacrylate, trimethylolpropane triacrylate, pentaerythritol triacrylate, tripropylene glycol diacrylate or trimethylolpropane trimethacrylate. The single and uniform coating not only helps to alleviate the problems of thermal runaway and cycle attenuation of the high-nickel ternary battery, but also does not need precise equipment in the preparation process, can be compatible with the existing lithium battery production line, and realizes collaborative optimization of thermal safety-cycle performance-mass production cost.

The invention relates to the technical field of battery materials, and discloses a sulfur-containing polymer battery material, a positive plate, a preparation method of the positive plate and a lithium-sulfur battery. The preparation method of the sulfur-containing polymer battery material comprises the step of carrying out cross-linking curing on molten sulfur and trimethylolpropane trimethacrylate according to a mass ratio of (1-4): 1. An O atom in a C = O functional group in the polymer S-TMPTMA prepared by the method is used as an electron-rich active site and can effectively perform chemical adsorption on relatively electron-poor lithium in a lithium polysulfide intermediate in a lithium-sulfur electrochemical reaction process, so that the dissolution of lithium polysulfide in an ether-based electrolyte is relieved, and the influence of a shuttle effect is weakened. In a preferred embodiment, the polymer is prepared as printing ink to manufacture an electrode through three-dimensional printing, and the electrode has excellent electrochemical performance.

The present invention relates to the technical field of adhesives, and in particular to a powder formaldehyde-free adhesive for multilayer boards and a preparation method thereof. The powder formaldehyde-free adhesive for multilayer boards is prepared from the following raw materials: modified plant meal, calcium chloride, potassium silicate, polyacrylamide, and trimethylolpropane trimethacrylate; the modified plant meal is obtained from trimethylolpropane tris (3-mercaptopropionate) and dodecanethiol modified and washed plant meal. The present invention effectively utilizes plant meal, overcomes the problems of insufficient adhesive strength, poor wet strength, and poor anti-aging performance of traditional plant meal adhesives, and realizes the combination of environmental protection and high performance.

The invention provides a styrene-acrylic latex and a waterproof coating using the same, and the styrene-acrylic latex is prepared from the following raw materials in parts by mass: 530-600 parts of a soft monomer, 150-200 parts of a hard monomer, 15-25 parts of an amide monomer, 5-10 parts of a carboxylic acid monomer, 10-20 parts of a long carbon chain acrylate monomer and 1-5 parts of a crosslinking monomer; wherein the carbon atom number of the long-carbon-chain acrylate monomer is greater than or equal to 10; the cross-linking monomer comprises an inner cross-linking monomer or a normal-temperature self-cross-linking monomer; the internal crosslinking monomer comprises at least one of acetoacetoxy ethyl methacrylate, trimethylolpropane trimethacrylate and ethylene glycol dimethacrylate; the normal-temperature self-crosslinking monomer comprises at least one of adipic acid dihydrazide, diacetone acrylamide and ethylidene urea methacrylate.

The invention discloses an expansion leaking stoppage particle and a leaking stoppage material.The expansion leaking stoppage particle is prepared from, by weight, 35-50 parts of hydrogenated butadiene-acrylonitrile rubber, 10-20 parts of trimethylolpropane trimethacrylate, 5-8 parts of nickel dibutyl dithiocarbamate and 15-18 parts of a cross-linking agent. The cross-linking agent is 1, 3-bis (tert-butylperoxy) isopropyl benzene or 1, 4-bis (tert-butylperoxy) isopropyl benzene, and the cross-linking agent is 1, 3-bis (tert-butylperoxy) isopropyl benzene. The leaking stoppage material comprises the expansion leaking stoppage particles, and the expansion leaking stoppage particles are formed by mixing coarse particles and fine particles; the ratio of the coarse particles to the fine particles is 1: 1. The particle size of the coarse particles ranges from 1 mm to 3 mm, and the particle size of the fine particles ranges from 100 micrometers to 250 micrometers. After expansion, shot hole gaps can be rapidly filled, a compact leaking stoppage layer is formed, the surfaces of the particles can generate chemical adsorption with stratum rocks, the leaking stoppage effect is enhanced, and the expanded particles have high mechanical strength and can effectively support stratum pressure and prevent leakage.

The invention relates to the field of fine chemical engineering wastewater treatment, and particularly discloses a method for synthesizing acrylic ester by recovering methanesulfonic acid from acrylic acid washing wastewater, which can turn the recovered methanesulfonic acid extracted from TMPTA washing wastewater into wealth, and in the preparation process, a mixed solvent in a certain proportion and a methanesulfonic acid solution with the concentration of 30% are extracted for four times, so that the yield of the acrylic ester is improved. The method improves the extraction rate of the acrylic acid, reduces the extraction loss rate of the methanesulfonic acid, greatly improves the content of the methanesulfonic acid, and removes the moisture in the 30% washing water concentrated solution under the condition of negative pressure of 75-80 DEG C, so that the content of the methanesulfonic acid is greater than or equal to 60%. Therefore, the esterification rate and the quality index of trimethylolpropane tri (methyl) acrylate synthesized by recycling methanesulfonic acid are guaranteed, the methanesulfonic acid recycled under the concentration can replace original fresh methanesulfonic acid with the content of 70%, waste is turned into wealth, meanwhile, the cost for synthesizing acrylate is saved, the purpose of saving the cost is achieved, and the method is suitable for industrial production. And the finished product accords with industrial indexes.

The invention belongs to a new material technology, and particularly relates to a low-odor TPV material and a preparation method thereof.The preparation method comprises the steps that EPDM rubber, PP resin, a processing aid, color master batch and white oil are mixed and granulated, and master batch is obtained; dynamically vulcanizing the master batch in the presence of a vulcanizing agent and a vulcanizing accelerator to obtain the low-odor TPV material. Wherein the vulcanizing accelerator is prepared from one or two of trimethylolpropane trimethacrylate and trimethylolpropane triacrylate. In the prior art, an adsorption treatment method is mostly adopted for reducing the TPV odor, and obvious defects exist. On the basis of a TPV system, a new formula is researched and developed, and good mechanical properties of the material are kept while the odor is effectively reduced. According to the low-odor TPV material and the preparation method thereof, di-tert-butylperoxy isopropyl phenyl (BIBP) is combined with trimethylolpropane trimethacrylate and trimethylolpropane triacrylate to be used for EPDM rubber / PP resin / white oil, extrusion granulation is performed to obtain the low-odor TPV material, the odor level of the low-odor TPV material is found to be level 1 through conventional detection, and the problem that TPV emits odor is solved.

This invention discloses the preparation and application of a novel magnetic, environmentally friendly molecularly imprinted material (MIM) with high-efficiency adsorption and photodegradation for organophosphorus pesticides. The MIM comprises a magnetic ferroferric oxide core coated with mesoporous titanium dioxide to form a shell with photoinduced degradation properties. The MIM is further modified with double bonds and polymerized on the surface using methacrylic acid as a functional monomer and dichlorvos and chlorpyrifos as dual template molecules under the action of trimethylolpropane trimethacrylate (TRIM) crosslinker, forming a novel "core-shell" magnetic MIM. The resulting MIM exhibits uniform particle size, excellent dispersibility, broad-spectrum adsorption for organophosphorus pesticides, good resistance to extreme environments, and multiple reusability. The MIM can be used for the rapid enrichment and detection of organophosphorus pesticides, while minimizing the impact of matrix effects on detection. The MIM has high detection speed, covers a wide range of pesticides, and enables high-throughput detection.

The present invention relates to a solid-phase extraction column filler. The solid-phase extraction column filler comprises: a microsphere body formed by copolymerization of several reaction monomers and several crosslinking monomers, and several graft monomers grafted on the surface of the microsphere body, wherein the reaction monomers are selected from acrylic acid; the cross-linking monomers are selected from at least one of divinyl benzene, diethylene glycol diacrylate, triethylene glycol diacrylate, and trimethylolpropane trimethacrylate; and the graft monomers are selected from heparin. According to the preparation method of the present invention, the acrylic acid is used as the reaction monomers and is copolymerized with the crosslinking monomers to generate the microsphere body; and then condensation grafting is carried out by means of a carboxyl functional group on the acrylic acid and an amino functional group of the heparin, such that preparation of the solid-phase extraction column filler is achieved, and the carboxyl functional group having electronegativity, a sulfonic acid group functional group of the heparin and the carboxyl functional group of the heparin can synergistically adsorb lactoferrin.